Re: [Boost-users] [boost::serialization] Howto derieve ownserialization archive? (Documentation is incomplete) [Re:want access to binary data sans bookkeeping data]

From: Robert Ramey (ramey_at_[hidden])
Date: 2007-01-22 12:57:08

I believe that this has been addressed in boost 1.34.

Robert Ramey

Marc Wäckerlin wrote:
> Brian Stempel wrote:
>>   I am wanting to serialize some C++ data structures
>> into a binary stream, and I'm wanting to send that
>> binary stream to an embedded python interpreter, where
>> it can unpack the data and make use of it.
>
> I have exactly the same problem: I need several kind of my own defined
> streamer. One is to write binary data 1:1, as Brian would like to do;
> my other idea is: Use the operator& syntax to stream either into a
> file, or into an SQL database, depending on the streamer (in my idea,
> the SQL-streamer would be similar to the existing XML-archive, but
> the XML-tags would here name tables and column names).
>
> Now I started by reading the "Serialization Archive Class Reference"
> on http://boost.org/libs/serialization/doc/archive_reference.html,
> which describes how to implement my own archive.
>
> Unfortunately, if I copy the code from the "simplest possible output
> archive" there into a header file, then write a code file that does
> nothing except including that header, the result is not compilable
> (GNU g++ 4.1.2).
>
> First problem:
>
> friend class boost::archive::load_access is undefined, so I have to
> add a forward declaration:
> namespace boost {
>   namespace archive {
>     class load_access;
>   }
> }
>
> Second problem (see attached test.cpp):
>
>> g++ test.cpp
> /usr/include/boost/archive/detail/interface_iarchive.hpp: In member
> function 'const boost::archive::detail::basic_pointer_iserializer*
> boost::archive::detail::interface_iarchive<Archive>::register_type(T*)':
> /usr/include/boost/archive/detail/interface_iarchive.hpp:54:
> error: 'instantiate_pointer_iserializer' is not a member
> of 'boost::archive::detail'
> /usr/include/boost/archive/detail/interface_iarchive.hpp:58: error:
> invalid use of undefined type 'const struct
> boost::archive::detail::basic_pointer_iserializer'
> /usr/include/boost/archive/detail/basic_iarchive.hpp:41: error:
> forward declaration of 'const struct
> boost::archive::detail::basic_pointer_iserializer'
>
> What's missing?
>
>
> Thank you
> Regards
> Marc
>
>
>
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